Date: Thu, 3 Oct 2019 17:07:23 +0930 From: "O'Connor, Daniel" <darius@dons.net.au> To: Hans Petter Selasky <hps@selasky.org> Cc: Oleksandr Rybalko <ray@ddteam.net>, freebsd-usb@freebsd.org Subject: Re: USB serial ports by serial number Message-ID: <366762AE-757E-4EB4-9A51-8B513FE7BC42@dons.net.au> In-Reply-To: <1f0a3207-89fd-0ddb-6049-91f114381386@selasky.org> References: <CC980A9B-8F41-4C2A-A729-2CC690DFDA7E@dons.net.au> <CAJ1Oi8HeyBvn4UYSDAh8gGxj0hPv-vgFZ9ArNX95CTniuQa80g@mail.gmail.com> <40CAFE90-B8F6-4A9B-A6D0-671D2DCEED52@dons.net.au> <1f0a3207-89fd-0ddb-6049-91f114381386@selasky.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> On 3 Oct 2019, at 17:01, Hans Petter Selasky <hps@selasky.org> wrote: > On 2019-10-03 08:56, O'Connor, Daniel wrote: >> Most of USB-serial devices have "very stable" serial number:) >> more than 50% have S/N "0123456789". >=20 > It is also allowed to have no serial number. Yes, that's why I match sernum to '.+' to skip those. > Maybe some kind of "lstty" would do. >=20 > -l - list all devices > -s - match by serial > -v - match by vendor > -p - match by product > -i - match by interface ID > -t - type [USB/PCI] >=20 > which simply output the tty number you need. Could be an API we could = add to libusb. The problem is you can't modify some program to call a new API a lot of = the time but it is usually trivial to change which serial port it's = configured to use. -- Daniel O'Connor "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?366762AE-757E-4EB4-9A51-8B513FE7BC42>